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surrogate advertising

n. The advertising of one product or service within an advertisement ostensibly for something else.

Wikipedia
Surrogate advertising

Surrogate advertising is a form of advertising which is used to promote banned products, like cigarettes and alcohol, in the disguise of another product. This type of advertising uses a product of a fairly close category, as: club soda, mineral water in case of alcohol, or products of a completely different category (for example, music CD's or playing cards) to hammer the brand name into the heads of consumers. The banned product (alcohol or cigarettes) may not be projected directly to consumers but rather masked under another product under the same brand name, so that whenever there is mention of that brand, people start associating it with its main product (the alcohol or cigarette). In India there is a large number of companies doing surrogate advertising, from Bacardi Blast music CD's, Bagpiper Club Soda to Officers Choice playing cards.